Why Trees?

Trees have a powerful impact on air quality, climate change, energy conservation, water quality, economy, comfort, habitat, and public health.

Vegetation and Violence

Seeing Green Prevents People from being Mean

It's true. A scientific study by the Human-Environment Research Lab has demonstrated that contact with nature may actually help reduce the incidence of aggression and violence in inner-city neighborhoods. According to this study, levels of aggression were significantly lower among people who had some kind of nature outside of their apartments versus those who didn't.

The impact of the physical environment on human aggression has been well-established - crowding, high temperatures, and noise have all been linked to violent behavior. Some scientists believe that it's because people living under these conditions suffer from something called chronic mental fatigue, which can make them inattentive, irritable, and impulsive - all of which can be linked to aggressive behavior. Exposure to green spaces, it has been shown, can mitigate the harmful effects of chronic mental fatigue, reducing aggressive behavior in the process.